fs: push i_mutex and filemap_write_and_wait down into ->fsync() handlers

[platform/adaptation/renesas_rcar/renesas_kernel.git] / drivers / mtd / ubi / cdev.c

diff --git a/drivers/mtd/ubi/cdev.c b/drivers/mtd/ubi/cdev.c
index 191f3bb..3320a50 100644 (file)
--- a/drivers/mtd/ubi/cdev.c
+++ b/drivers/mtd/ubi/cdev.c
@@ -189,12 +189,16 @@ static loff_t vol_cdev_llseek(struct file *file, loff_t offset, int origin)
        return new_offset;
 }
 
-static int vol_cdev_fsync(struct file *file, int datasync)
+static int vol_cdev_fsync(struct file *file, loff_t start, loff_t end, int datasync)
 {
        struct ubi_volume_desc *desc = file->private_data;
        struct ubi_device *ubi = desc->vol->ubi;
-
-       return ubi_sync(ubi->ubi_num);
+       struct inode *inode = file->f_path.dentry->d_inode;
+       int err;
+       mutex_lock(&inode->i_mutex);
+       err = ubi_sync(ubi->ubi_num);
+       mutex_unlock(&inode->i_mutex);
+       return err;
 }